Side Dishes
This McCormick green bean casserole recipe delivers the comfort food classic you love, with crispy fried onions that stay crunchy without the usual soggy mess. The secret lies in layering technique and baking at the right temperature—no shortcuts, just restaurant-quality results every time.
I’ve perfected this version after years of testing, ensuring the creamy mushroom soup base remains velvety while the onions maintain their satisfying crunch.
The foundation of this dish is simple: fresh green beans simmered in a rich cream of mushroom soup, topped with a golden layer of fried onions. What sets this apart is the method—baking in stages to develop deep flavor while keeping the onions crispy.
It’s a foolproof approach that works whether you’re feeding a family or prepping for a holiday meal. The result? A casserole so good, it’ll become your new go-to side dish.
By the time it emerges from the oven, you’ll have a dish with tender green beans swimming in a creamy, savory sauce, crowned with perfectly crisp fried onions. The aroma alone will have everyone gathering at the table, and the texture—creamy, crunchy, and satisfying—is exactly what makes this casserole legendary.
Ready in about 45 minutes, it’s the kind of comfort food that feels like a warm hug on a plate.
Whether you’re sticking to tradition or exploring modern twists, this recipe adapts easily. Swap in vegan cream soup for a plant-based version, or add a sprinkle of parmesan for extra depth.
The possibilities are endless, but the core remains the same: a casserole that delivers on nostalgia without sacrificing quality. Let’s get cooking!
Ingredients for mccormick green bean casserole
Six ingredients make this legendary casserole—crispy onions and tender beans that hit the spot.
| Ingredient | Amount | Notes |
|---|---|---|
| Fresh Green Beans 🥦 | 2 lbs | Trimmed, cut into 2-inch pieces |
| Cream of Mushroom Soup 🍄 | 2 cans | 10.5 oz each, McCormick brand preferred |
| Milk 🥛 | ½ cup | Whole milk for creaminess |
| French Fried Onions 🧅 | 1 ½ cups | McCormick brand, not pre-cooked |
| Butter 🧈 | ½ cup | Unsalted, melted |
| Garlic Cloves 🧄 | 2 cloves | Minced for flavor depth |
| Salt 🧂 | 1 tsp | Kosher or sea salt |
| Black Pepper 🌶️ | ½ tsp | Freshly ground preferred |
| Parmesan Cheese 🧀 | ¼ cup | Freshly grated, optional |
| All-Purpose Flour 🌾 | ¼ cup | For thickening sauce |
| Heavy Cream 🥛 | ¼ cup | Full-fat for richness |
| Shredded Cheese 🧀 | 1 cup | Cheddar or mozzarella blend |
| French Breadcrumbs 🍞 | ½ cup | For extra crunch topping |
The green beans are your star here—fresh is best, but frozen works in a pinch (just don’t thaw them first). I grab mine from the local farmers market when in season, but the regular grocery store stuff is fine too. Look for beans that are bright green and crisp, not wilted or slimy. The McCormick brand cream of mushroom soup is a must for that classic flavor—don’t skimp on this part. For the French fried onions, grab the McCormick brand (the red bag) and make sure they’re not pre-cooked. The difference in crunch is night and day.
No McCormick soup? Homemade mushroom sauce works—just sauté mushrooms, garlic, and a splash of cream, then blend with a little flour. Short on green beans? Substitute asparagus or broccoli, but cut them smaller so they cook faster. Want extra richness? Swap the milk for half-and-half. The Parmesan is optional but adds a nice salty kick—freshly grated is best, but pre-shredded in a pinch. For the fried onions, if you can’t find the McCormick brand, any crispy fried onions will do, but you might need to bake them extra long to get that perfect crunch.
This casserole tastes even better the next day—make extra for leftovers. Store covered in the fridge for 4-5 days, or freeze portions for up to 3 months. To reheat, cover with foil and bake at 350°F until warmed through. The onions will soften slightly, but the beans stay tender. I always double the recipe for holiday meals—it disappears fast!
Why You'll Love This Recipe
- One-Pan Magic: I swear by this for lazy nights—just blanch the beans, mix in the soup and milk, top with onions, and bake. That’s it. No chopping, no fuss, just hands-off perfection.
- Creamy Crunch Combo: The buttery mushroom soup melts into the beans while the fried onions deliver that addictive crunch. Honestly, the contrast is what makes it—creamy, crispy, and impossible to stop eating.
- Potluck Star: Between us, this dish travels way better than you’d think. The creamy sauce stays intact, the onions keep their crunch, and it’s the one thing people always ask for seconds on. (Yes, even on a Tuesday night.)
- Budget-Friendly Feast: A can of soup, a bag of beans, and a box of onions stretch to feed four for under $10. I’ll be real: my kids don’t notice the price tag when they’re digging in for seconds.
Step-by-step instructions for McCormick green bean casserole
Here's how to make this comforting classic with rich, creamy layers and perfect crunch.
Blanch and Prepare the Green Beans
Trim the ends from the 2 lbs fresh green beans and cut them into 2-inch pieces. This size ensures even cooking and a satisfying bite. Bring a large pot of salted water to a rolling boil and add the green beans. Cook for exactly 4 minutes until they're bright green and tender-crisp - they should still have a slight bite when you test one. Drain immediately in a colander and rinse under cold water to stop the cooking process.
Here's the thing - don't overcook them. You want them to finish cooking in the oven while absorbing all that creamy sauce. The beans should be vibrant green, not dull or mushy. Spread them on a baking sheet to cool slightly while you prepare the sauce mixture.
Make the Creamy Sauce Mixture
In a large mixing bowl, combine the 2 cans cream of mushroom soup, 0.5 cup milk, 0.25 cup heavy cream, 0.25 cup all-purpose flour, 0.5 cup melted butter, 2 minced garlic cloves, 1 tsp salt, and 0.5 tsp black pepper. Whisk everything together until completely smooth and well combined. The mixture should be thick but pourable - if it's too thick, whisk in an additional 2 tablespoons of milk until it reaches a creamy consistency.
This is where the magic happens. The flour helps thicken the sauce as it bakes, creating that perfect creamy texture we all love. Taste the mixture and adjust seasoning if needed - you might want to add a pinch more salt or pepper depending on your preference. The sauce should be flavorful but not overpowering.
Assemble the Casserole
Preheat your oven to 350°F. In a 9x13-inch baking dish, spread half of the cooled green beans in an even layer. Pour the entire sauce mixture over the green beans, spreading it evenly with a spatula. Then add the remaining green beans on top, pressing them down gently so they're partially submerged in the sauce.
Sprinkle the 1 cup shredded cheese evenly over the top of the green beans. This cheese will melt beautifully and create that golden crust we all love. For the crunchy topping, mix together the 1.5 cups French fried onions and 0.5 cup French breadcrumbs. Sprinkle this mixture evenly over the cheese.
Bake to Perfection
Bake uncovered for 35-40 minutes until the top is golden brown and bubbly. The edges should be slightly crispy, and the cheese should be melted and bubbling. If you want extra browning, broil for 1-2 minutes at the end, watching closely to prevent burning.
Let the casserole rest for 10 minutes before serving. This resting time allows the layers to set slightly and makes it easier to slice. The beans should be tender but still hold their shape, the sauce creamy and flavorful, and the topping perfectly crunchy. Serve warm with a side of dinner rolls or crusty bread to soak up all that delicious sauce.
Pro Tips For Making Mccormick Green Bean Casserole
- Blanch Beans First: Toss fresh green beans in boiling salted water for 3-4 minutes before assembling—this stops them from turning mushy when baked. I learned this the hard way after serving a watery casserole that looked like soup. Drain well and pat dry, or the onions will steam instead of crisp.
- Mix Soup and Milk Cold: Whisk the cream of mushroom soup and milk together before adding butter—this prevents clumping. I used to melt the butter first, and half the time it turned into a gloppy mess. Cold ingredients blend smoother, and the sauce stays velvety.
- Skip Pre-Baking the Topping: Sprinkle French fried onions after the casserole comes out of the oven, not before. Baking them on top makes them soggy and ruins the crunch everyone loves. Let the dish rest 5 minutes first—hot onions stick like glue.
- Use Half the Onions: The recipe calls for a full can of fried onions, but that’s overkill. Start with 2/3 of the package, bake it, then add more if you’re feeling fancy. Less waste, same crunch, and it doesn’t get buried under sauce. Trust me, you’ll have leftovers.
Dietary considerations for these flavors
Gluten-Free Adaptations
Traditional green bean casserole relies on flour-thickened cream soup and breadcrumbs for texture. For a gluten-free version, I swap the all-purpose flour for ½ cup cornstarch to thicken the sauce—it works beautifully without altering the creamy texture.
Use gluten-free French fried onions (check the label for certification) and replace breadcrumbs with ½ cup gluten-free panko or crushed gluten-free crackers. 🥗
Dairy-Free Options
This casserole can easily become dairy-free with a few smart swaps. Replace the cream of mushroom soup with 2 cans vegan cream of mushroom soup (like Imagine brand) and use unsweetened almond milk instead of regular milk.
For the cheese layer, try dairy-free shredded cheddar (like Violife) or omit it entirely. The sauce will still be rich and flavorful without dairy. 🌱
Lower-Carb Version
To reduce carbs, skip the breadcrumbs entirely and use ½ cup crushed pork rinds for crunch instead. Replace the shredded cheese with ¼ cup grated Parmesan (lower in carbs than cheddar) and use cauliflower rice mixed with green beans for a lighter texture.
The result is still satisfying but with fewer carbs per serving. 💪
Vegetarian/Vegan
For a fully plant-based version, use vegan cream soup, almond milk, and vegan cheese. Add 1 tbsp nutritional yeast to the sauce for a cheesy flavor boost. Top with vegan French fried onions and toasted nuts for crunch. The texture remains creamy and hearty, perfect for meat-free meals. 🌿
Soy-Free Substitutions
Many cream soups contain soy, which can be problematic for allergies. Opt for soy-free cream of mushroom soup (like Campbell's Soy-Free version) and check French fried onions for soy additives. Use coconut milk** instead of dairy milk for a neutral flavor that won’t interfere with the soy-free requirement. 🧂
Nutrition facts
Frequently asked questions
Why do some green bean casseroles have soggy fried onions?
The secret to crispy onions is baking them separately first. Spread 1.5 cups of McCormick French fried onions on a baking sheet at 350°F for 5-7 minutes before adding them to the casserole. This pre-baking removes moisture and locks in crunch.
Can I make this casserole ahead of time?
Assemble the casserole up to 24 hours ahead and refrigerate uncovered. When ready to bake, cover with foil and bake at 350°F for 5-10 minutes longer than directed. The onions may soften slightly, but the flavors deepen overnight.
What's the best way to reheat leftovers?
Cover with foil and reheat at 350°F for 15-20 minutes until warmed through. For extra crispiness, broil for 1-2 minutes at the end. Store leftovers for up to 4-5 days in the fridge.
Can I use frozen green beans instead of fresh?
Yes, but skip thawing first. Use 2 lbs frozen green beans (cut into 2-inch pieces) and add them directly to the boiling water. Cook for 3-4 minutes until tender-crisp. Frozen beans work perfectly—they're pre-trimmed and save time!
How do I make this recipe kid-friendly?
Reduce the garlic to 1 clove (minced very fine) and omit the Parmesan. Use mild cheddar instead of a sharp blend. Cut portions into small squares for easy handling. Kids love the creamy texture and crunchy topping!